Episode 5 download is ridiculously slow and won't finish

I have attempted to download episode 5 through the in-game download twice now and it is so slow that it crawls to 99% after about 4 hours and then freezes. Am getting very frustrated having paid for all of the eps and now stuck trying to finish. Can I get some help please?

I've seen the manual download option, but can't see anything except the application amongst my files. No Telltale folder, nothing.

Dying to get through the story, please help!!
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